Anyone know what i do for this?

Write a recursive sequence that represents the sequence defined by the following explicit formula:

Simplify 4 square root of 2 end root plus 7 square root of 2 end root minus 3 square root of 2 . (1 point) 2 square root of 8 8 square root of 2 8 square root of 6 6 square root of 8

Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?